Camera with a motor drive unit

Details Camera with a motor drive unit Camera with a motor drive unit

1977-02-08

1979-10-23

Griffin, Donald A.

354214, G03B 118, G03B 100

Patent

active

041718925

ABSTRACT:
In a camera adapted for use with a motor drive unit capable of selectively controlling film winding and rewinding operations, there are provided first and second driving torque input means, the first input means being positioned for continual engagement with a film winding up mechanism, and the second input means being arranged upon setting movement of a manually operated rewinding knob to attain driving engagement with a rewinding shaft and being located outside a film cartridge chamber to insure the protection of the film from fogging. The motor drive unit has a pair of output means connected through respective directionally-responsive clutches to a common motor and arranged upon attachment to the camera to engage the respective input means of the camera and has a single operating member for selectively actuating each of the output means for the film winding and rewinding operation.

REFERENCES:
patent: 3598033 (1971-08-01), Seesaki
patent: 3735683 (1973-05-01), Umeda
patent: 3783762 (1974-01-01), Sugimori
patent: 3981022 (1976-09-01), Iwashita et al.
patent: 3999197 (1976-12-01), Iwashita

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